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Important:

Important:

2.2 Inserting and
Testing Batteries

Important:

2.3 Connecting and

Using Microphones

2.4 Color Code

1.1 Adjustments

Be sure to switch power to the transmitter OFF every time before 
changing the carrier frequency. The new carrier frequency will not be
activated before you switch the transmitter back ON. (If you change the
carrier frequency while the transmitter is ON, the transmitter will remain
tuned to the old carrier frequency.)

If you wish to set up a multichannel system, read section 1.2 Multichannel
Systems in Part V first.

1. Open the battery compartment (3h).
2. Insert the supplied batteries into the battery compartment (3h) conforming to

the polarity marks.
The transmitter will not function with incorrectly inserted batteries.

3. Close the battery compartment (3h). The GAIN control (3j) remains accessible

through an opening in the battery compartment cover.

4. Rotate the security cover (3m) CW to uncover the switches.
5. Set the POWER switch (3a)  to "I" to switch the power to the transmitter on.

The status LED (3c) will flash momentarily. If the batteries are in good con-
dition, the status LED (3c) will continue glowing dimly.
When the status LED (3c) illuminates brightly the batteries will be dead within
about 90 minutes. Replace the batteries with new ones as soon as possible.
If the status LED (3c) fails to illuminate the batteries are dead. Insert new
batteries.

6. Snap the security cover (3m) back over the switches CCW. 

You can wear the transmitter inside a shirt or jacket pocket, fix it to your belt
with the belt clip (3g).

Make sure the antenna will hang down freely, without being covered by
the body.

1. Connect your microphone to the audio input (3d).
2. For details on how to use your microphone for best results, refer to the micro-

phone instruction manual.

To replace the black color code platelet (3e) on the transmitter with a different-
color platelet from the optional CC 60 Color Coding Kit,

1. Lift the end of the black color code platelet (3e) on the top panel of the trans-

mitter and remove the color code platelet (3e).

2. Select a color code platelet of the desired color from the CC 60 Color Coding

Kit and snap the selected platelet onto the transmitter.

1.

Handheld transmitter:

Using the supplied screwdriver (1m), set the GAIN

control (2e) so that on the receiver the AF LEDs (1h) will light green and the AF
LED (1d) on the receiver as well as the status LED (2b) on the transmitter will
only flash on the loudest signal peaks.

Bodypack transmitter:

Using the supplied screwdriver (1m), set the GAIN

control (3j) so that on the receiver the AF LEDs (1h) will light green and the AF
LED (1d) on the receiver as well as the status LED (3c) on the transmitter will
only flash on the loudest signal peaks.

28

PART IV: PT 81 BODYPACK TRANSMITTER

IV

1 Adjusting the Transmitter and Receiver

PART V: OPERATING NOTES

V

Summary of Contents for HT 81

Page 1: ...PR 81 HT 81 PT 81 User Instructions Please read the manual before using the equipment...

Page 2: ...s 24 2 8 Aligning the Antennas 24 2 9 Color Code 24 PART III HT 81 HANDHELD TRANSMITTER 25 1 Description 25 1 1 Controls 25 1 2 Interchangeable Microphone Elements 25 2 Setting Up 26 2 1 Selecting the...

Page 3: ...protection against harm ful interference in a residential installation This equipment generates uses and can radiate radio frequency ener gy and if not installed and used in accordance with the instr...

Page 4: ...cable for headphones MK HP C connecting cable for cameras and headphones W 880 foam windscreen for D 880 WL1 W 3001 foam windscreen for D 3700 WL1 and C 5900 WL1 W 23 foam windscreen for C 535 WL1 CC...

Page 5: ...nd from 710 MHz to 860 9 MHz using a switching subband that is up to 3 MHz wide Subject to local frequency allocations you can switch the PR 81 to one of up to 15 different carrier frequencies 1a POWE...

Page 6: ...set for which your receiver has been programmed 1o Approval marks 1p Belt clip for fixing the receiver on your belt The AUDIO OUT 3 pin mini XLR connector 1r on the receiver top panel provides a fixed...

Page 7: ...river 1m to set the SQUELCH control 1j fully CCW minimum For details on setting the SQUELCH control 1j refer to section 1 in Part V 6 Align the battery compartment cover 1l with the guide grooves on t...

Page 8: ...been shorted 1 Unplug the connecting cable from the camcorder 2 Correct the problem 3 Plug the connecting cable into the camcorder jack again 1 Remove the backing from the supplied Velcro strips 2 At...

Page 9: ...r 2 Plug the XLR connector on the Y cable into the desired XLR input jack on the camcorder or mixing console 3 Connect the headphones to the mini jack on the Y cable 4 Use the rotary control 1e to set...

Page 10: ...black plastic ring and replace it with a colored ring from the optio nal Color Coding kit to identify each wireless channel by a different color 2e GAIN This rotary pot allows you to match the microp...

Page 11: ...f conforming to the polarity marks The transmitter will not function with incorrectly inserted batteries 3 Set the PWR switch to I to switch the power to the transmitter on The status LED 2b will flas...

Page 12: ...latelet and replace it with a colored platelet includ ed in the optional Color Coding Kit to identify each channel by a different color 3f CHANNEL This rotary switch selects the desired carrier freque...

Page 13: ...us LED 3c fails to illuminate the batteries are dead Insert new batteries 6 Snap the security cover 3m back over the switches CCW You can wear the transmitter inside a shirt or jacket pocket fix it to...

Page 14: ...the received signal If the RF LED 1c is dark repo sition the receiver and or transmitter such that the RF LED 1c will light green 6 The RF LED 1c on the receiver illuminating means no signal is receiv...

Page 15: ...r too low 2 Interference from other wireless systems TV radio CB radios or defective electrical applian ces or installations 1 Antenna location Remedy 1 Set POWER switch on receiver to I 2 insert batt...

Page 16: ...z FM 50 to 20 000 Hz 10 ppm 30 kHz 0 5 Yes typ 50 dB A 10 mW 150 mA typ 2 x 1 5 V AA size batteries 12 hours 350 mV 1 kHz 220 k length 240 mm 9 4 in dia 36 mm 1 4 in 245 g 8 7 oz PT 81 710 to 860 9 MH...

Page 17: ...e las frecuencias Lista de frequ ncias Set EU59 CHANNEL FREQ 0 OFF 1 777 600MHz 2 777 800MHz 3 778 000MHz 4 778 200MHz 5 778 400MHz 6 778 600MHz 7 778 800MHz 8 779 000MHz 9 779 200MHz A 779 400MHz B 7...

Page 18: ...93...

Page 19: ...SNR 01001 AKG Set EUS 1 000 000 9 000 000 MHz 2 000 000 10 000 000 MHz 3 000 000 11 000 000 MHz 4 000 000 12 000 000 MHz 5 000 000 13 000 000 MHz 6 000 000 3k 3l PT 81 3b 3a 3c 3d 3e 3g 3g 3i 3m 3m II...

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